Collapsible paperboard liquid dispensing container



GOLLAPSIBLE PAPERBOARD LIQUID DISPENSING CONTAINER D. BENSEL vApril 25, 1939.

Filed June 5, 1957 2 Sheets-Sheet l MMI@ April 25, 1939. D. BENsEl. 2,155,636

COLLAPSIBLE PAPERBOARD LIQUID vvDSPENSING CONTAINER Filed June 5, 1937. 2 sheets-sheet 2 INVENTORZ burg/GQ56725625 iirritante-i Apr. 25, 1939 4UNITED STATES PATENT OFFICE COIiLAPSIBLE PAPERBOARD LIQUID DIS- PENSING CONTAINER Duryea Bensel, New York, N. Y., assignor to Bensel Corporation, New York, N. Y., a corporation of Delaware Application June 5, 1937, Serial No. 146,536/

9 Claims.

oil, such as is used in automobile engines and l the like, wherein such oil is heavy and viscous, and flows out veryv slowly. By the collapsing of the carton, thedischarge of the residual oil from the container may be hastened by squeezing opposite sides of the container together, to be explained more in detail later.

A further advantage lies in the provision of a flexible, puncturable, liner of liquid and leak proof nature, for lining the interior of the-container, and for containing the liquid.

A further advantage lies in the provision of an extendible pouring spout, which is inherently formed in one of the ends of the container, such spout being formed from erectable sections of the top end closing panels, as disclosed in my co-pending United States patent application Serial No. 3,246, filed January 24, 1935. The foregoing and other features of advantage will be apprehended as the herein description proceeds and it will be obvious that modifications may be made in the structure herein without departing from the spirit hereof or the scope of the appended claims.

In the drawings, I i

Fig. 1 is a view in elevation of the erected, illled and sealed carton, with parts broken away to show the interior details;

Fig. 2 shows the carton in elevation with the pouring spout erected and the carton partly collapsed;

Fig. 3 is a view, similar to Fig. 2, with the carton substantially fully collapsed;

.Fig. 4 is a sectional view taken on line 4 4,

Fig. 2, looking in the direction of the arrows; Fig. 5 is a sectional view, taken on the line 5 5, Fig. 1, looking in the direction of the arrows;

Fig. 6 is a plan view of the carton showing the inherent pouring spout, before erection;

Fig. 7 is an enlarged sectional .view taken onl the line 1 1, Fig.v 3, looking in the direction of arrows;

Fig. 8 is a plan view of Fig. 6 showing the first rupture of the top end closing panels, to develop the pouring spout;

Fig. 9 is a view, similar to Fig. 8, showing th further development of the pouring spout;

Fig. 10 is still a further and final development of the pouring spout, this view being a fragmentary view of Fig. 3, as viewed from the right hand side thereof;

Fig. 11 is a perspective .view of the carton liner filled and sealed; fand Fig. 12 is a fragmentary, enlarged transverse'- sectional view of the sealed upper portion .of the liner.

The carton, generally denoted by C, as disclosed, comprises a four sided paper board structure, and a glue lap 1, each side member being provided with an end closing flap on opposite ends, said ilaps being glued to one another at said ends to form multiple top and bottom closures of the carton, when filled and sealed.

, Two opposite side panels 3 and 6 are provided with traversing score lines 33 and 40, respectively, score line 33 being located near the bottom closure I8, and being parallel thereto, and score line 40 being located near the upper closure end I9, and being parallel thereto. Said score lines 33 and 40 are parallel to each other. Score line 33, Figs. 2 and 3, denes a' rectangular sub-side panel i0 on main side panel 3 and score line 40 defines ,a rectangular sub-side panel i1 from main side panel 6. Score lines 33 and 40, form folding or hinge lines, as seen in Figs. 2 and 3,

whereby sub-side panels i0 and Il may be coi- B, which are oppositely located to one anotl'ersm .and will now be described.

The above noted cooperating score lines on main side panel A comprise a central score line 26, Figs. 1 and 2, which runs longitudinally of the mid-section of the side panel -A, and terminates short of the bottom and top end closures I3 and I9 and ends at the' adjacent bottom and top horizontal score lines 29 and 36 respectively.

At the bottom, Fig. 1 are located two diagonal score lines 21 and 28, which commence in -each opposite corner of the bottom I 8, and, slanting upwardly merge at the joining point of score lines 26 and 29, thus forming a bottom triangular sub-panel I2, and an oiiset triangular panel Ii', as viewed in Figs. 1 and 2.

At the top of the carton, underneaththe top closure il and commencing at the opposite cor- 4ners thereofare located two angular score lines 34 and 3l, said lines merging into and terminat- 5 ing at the Junction ci score lines 23 and 3l, thus forming a triangular sub-panel il and an oilset triangular panel Il. Triangular panels ii and i3 are oii'set in relatively opposite directions on either side oi' the mid-score line 2l. The oppo- 10 site panel B is provided with a set oi score lines similar to that described for panel A, the central longitudinal score line 3l, indicated in Pig. 5. corresponds to score line 23 on panel A, and the other score lines on panel B correspond to 4u, the score lines described ior panel A, said other score lines being in registration with the score lines -oi panel A, so that when it is desired to collapse the carton as indicated in Pig. 3, a slight pressure on side panels 3 and 3 causes. the panels no A and B to collapse, accordion-like, inwardly, automatically and in orderly folds" upon their score lines, irom the iull erected position oi the carton through the stages indicated in Figs. 1, 2 and 3.

n As will be observed, in Figs.. 2 and 3, the top and bottom end closures Il and I3, respectively, during the collapsing operation, are drawn inwardly from their normal rectangular positions until their plane surfaces Il-ll are substantial- .o 1y parallel with the collapsed sides 3 and 3. During this movement the top and bottom portions bend on the top and bottom, side or end ilap score lines Y and X respectively, Figs. l, 2 and 3, at opposite corners and ends oi' the container.

u As described, all ioldings oi the container upon its varied score lines are symmetrical and inward, thus decreasing the volumetric dimensions of the container until, finally all walls and ends are in collapsed fiat contact with their adjacent n and coacting wall and end members. In this condition the collapsed package is then squeezed sequentially ilatwise from the bottom towards the pouring spout P, thus to extract, to a reasonable degree, all oi the residual lubricant left,

a therein, such extraction being at a higher degree oi' speed, than the normal feed iiow oi the viscous body from the container. Thus time is saved, as the dispensing oi the oil is hastened .and oil is saved.

m The purpose oi causing the collapse oi' the carton on the preformed score lines is to hasten the discharge of the liquid contents therefrom,

and is especially useful for emptying the contents quickly, without awaiting for the contents u to drain therefrom, as such heavy, or comparatively slow ilowing liquids, 'such as lubricating oils, it being dispensed from/the carton directly into the oil compartment o! a gas engine, for instance, can be dispensed i'rom the carton very o quickly by opening the carton, releasing the oil from the liner, and then progressively collapse the carton longitudinally as described and then, by hand squeezing the carton dat, progressively, irom the bottom to the pouring spout end. u Aswillbenotedinlligs2and3,thecarton, when in the act of collapsing has its'bottom i3 gradually brought upwardly until it becom ilattened parallel to panel 3, while simultaneously the top portion il is gradually brought down- 70 wardly until it becomes iiattened parallel to the tace oi the opposite panel 3. As this gradual ilattening occurs, the volumetric spaces between the panels 3 and I, and between the bottom i3 and panel 3 and top i3 and panel l, become gradually decreased, thus driving the oil forward to thedispensingspout.'whenfullycollapoeitall o! the interior surfaces o! the carton come into cylindrical contour as shown in Fig. l1, or mslymi be o! rectangular contour, and will thus readily conform to the interior oi the outer container C when iilled with a liquid.

After being lled the open ends of the liner may be over-iolded-as shown at l' in Fig. 12, 15 sealed-with an adhesive or heat sealed, if desired, and the illled liner then introduced into an open end oi' the outer container C, and the container C may then be sealed, and the package is then ready for sale and dispensing. zo

To dispense the contents, the pouring spout end, Fig. 6, is rupt on the line oi weakness S, the top triangular ps 23-24 thus formed, are bent backwardly on their respective score linesv 23'-24, as illustrated in ll'lg` 8, and the under- 25 lying spout portions vII--Ii-II are vpulled out on their inner and joint corner score lines 2V-22' and Ii-II, Fig. 9, and the adjacent edges oi the spout portions Ii--Il and 23-24, are pulled apart and upwardly as illustrated in so Figs. 2. 3, 4 and l0, .thus forming a pointed pou'ring spout P, with an ovate pouring opening. Ai'ter the erection of the pouring spout, the inner i pliable liner is ruptured or cut, and the liquid vice unreilllable. Thus, the package practically 40 guarantees its original contents to the user, when it is opened in the presence oi the purchaser.

What is claimed is:

l. A paper board vcontainer comprising side panels and end closur, two opposed panelsbe- 4s ing provided with collapsing portions denned by score lines, two other opposite side panels being provided with oppositely collapsing, hinged subpanels deilned by score lines.

v 2. A paper board container comprising side so panels and end closures. two opposed panels being provided with inwardly collapsing portions dennen by traversing. longitudinal and diagonal score lines, two other opposite side panels being provided with hinged-oppositely collapsing ss sub-panels dennedby traversing score lines.

3. A paper board container comprising side panels and end closures, two opposed panels being provided with inwardly collapdns Portions defined by traversing, longitudinal and diagonal 00 score lines, two opposite side panels being pro- .vided with hinged oppositely collapsing subpanels deilned by traversing score lines, the traversing Alines on all said panels merging together. l 4. A rectangular paper board container comprising iour side forming panels and plural walled end closures, vtwo opposed panels being divided into plural, symmetrical sub-panels and adapted .m to be oppositely and simultaneously collapsed, said collapsible sub-panels being defined by score lines, the other two panels and said end closures being adapted to be also collapsed upon said ilrst sub-panels, the collapsing portions of said second u aisaaso panels and end closures being defined lbysoore lines.

5. A rectangular paper board container coml prising four side forming panels and plural walled end closures. two opposed panels being divided into plural, symmetrical sub-panels and adapted to be oppositely and simultaneously collapsed inwardly, said collapsible sub-panels being dened by score lines, the other two panels and said end closures being adapted to be also oppositely collapsed upon said rst sub-panels, the collapsing portions of said second panels and end closures being defined by score lines.

6. A rectangular paper board container` comprising four side forming panels and plural lwalled end closures, two opposed panels being divided into plural, symmetrical sub-panels, said sub-panels being adapted to be simultaneously and oppositely collapsed inwardly towards each other, and being defined by joined scorevlines, the other two panels being adapted to be also oppositely collapsed upon said first sub-panels, the collapsing portions of said second panels being deilned by score lines which merge with the score lines-ot said first sub-panel score lines.

7. A rectangular paper board container comprising four side forming panels and plural walled end closures therefor, two opposed panels being scored to form sub-panels which coact to simultaneously fold oppositely and symmetrically inwardly, the other two panels being scored' to cause said end closures to fold inwardly and oppositely upon said first two opposed panels when the container is collapsed.

8. A rectangular paper boardcontainer comprising four side forming panels and plural walled end closures therefor. two opposed panels being scored to form sub-panels which coact to simultaneously fold oppositely and symmetrically inwardly, the other two panels being scored to cause said end closures to fold inwardly simultaneously and oppositely with said rst sub-panels and to rest upon the opposite sides of said rst two opposed panels when the container is collapsed. Y

9. A rectangular paper board container comprising four side forming panels and `plural walled end closures therefor, two opposed panels being scored to form sub-panels which'coact to simultaneously and oppositely fold symmetrically inwardly, the other two panels and end closures being scored to cause said end closures to fold oppositely and inwardly upon said rst two opposed panels when the container is collapsed, one

of said end closures being provided an inherent u rupturable and erectable pouring spout.

DURYEA BENSEL. 

